CN106674680A - Polyethylene composition, and high-density polyethylene product and preparation method thereof - Google Patents
Polyethylene composition, and high-density polyethylene product and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention relates to a polyethylene composition which contains high-density polyethylene, ultra-fine full-vulcanized powdered styrene-butadiene rubber, an antistatic agent and a compatilizer, wherein the compatilizer contains modified polyethylene of a structural unit with a polar monomer. The invention further provides a preparation method of a high-density polyethylene product. The preparation method comprises the following steps: extruding and forming the composition. The invention further provides the high-density polyethylene product prepared by the preparation method. With the adoption of the polyethylene composition provided by the invention, the high-density polyethylene product with excellent antistatic performance and excellent mechanical performance can be obtained, and the situation that carbon black is added to prepare antistatic polyethylene, so that only a black product can be obtained cannot occur; the color of the high-density polyethylene product prepared by the preparation method provided by the invention is light and adjustable.
Description
Technical field
The present invention relates to polyethylene composition and high density polyethylene (HDPE) product and preparation method thereof.
Background technology
High density polyethylene (HDPE) is a kind of broad-spectrum macromolecular material, some of them high density polyethylene (HDPE)
(HDPE) there is good melt strength, mechanical performance etc., can be used for extrusion-blown modling prepare pail pack,
The products such as tank.It is exactly that insulating properties is fine but high density polyethylene (HDPE) has a very big feature, therefore in accumulating
With can produce electrostatic in use, this static charge accumulation to a certain extent after, it may occur that acutely electric discharge,
Produce electric spark.For some inflammable and explosive chemical substance, environment, electric spark is easy to cause detonation
The problems such as, with certain danger.Easy, lightweight, shaping is molded because polythene material has
Consume energy low feature, can produce pail pack, tank of the fine feature of environmental protection etc..But will for some packagings
The chemical raw material for asking antistatic performance good, for example, contain offroad vehicle reserve fuel, military POL etc.,
Ask packaging material that there is good anti-static function, to avoid it from having electrostatic to produce during accumulating and use
It is raw, work the mischief.Wherein, pail pack, the tank for being produced using anti-static polyethylene, the irony that compares bag
Barrelling tank, with lightweight, shaping easily, shape design freedom, chemical-resistant resistance, acid-alkali-corrosive-resisting,
The advantages of feature of environmental protection is good, and in the event of when detonation, without lethality as metal can,
Security is bigger.Under normal circumstances, the material such as carbon black or metal dust being added in HDPE can improve
The antistatic property of HDPE.But it is black that the addition of carbon black causes the color of material, and this is to face
For the product that color is required, laggard product that cannot prepare other colors of carbon black is added；And if will
Metal dust is added, one is that price is higher, and technology powder is also easily aoxidized, and can substantial cracking, material
Bad mechanical property.
The content of the invention
It is an object of the invention to the drawbacks described above for overcoming existing Anti-Static Electricity High Density polyethylene to exist, carries
The polyethylene composition and height of excellent and satisfactory mechanical property and Color tunable for a kind of antistatic property
Density polyethylene product and preparation method thereof.
To achieve these goals, the present invention provides a kind of polyethylene composition, and said composition contains highly dense
Degree polyethylene, ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber, antistatic additive and compatilizer, the compatilizer contains
The modified poly ethylene of the construction unit with polar monomer.
Present invention also offers a kind of preparation method of high density polyethylene (HDPE) product, the method includes：Will be upper
Stating composition carries out extrusion molding.
Present invention also offers by obtained in said method high density polyethylene (HDPE) product.
By the polyethylene composition using the present invention, it is obtained in that antistatic property is excellent and mechanical performance
Good excellent high density polyethylene (HDPE) product, and will not be only capable of as added carbon black to prepare anti-static polyethylene
The product for obtaining black class is the same, and the color of the high density polyethylene (HDPE) product obtained by the present invention is light class,
Its Color tunable.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
The specific embodiment of the present invention is described in detail below.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The present invention provides a kind of polyethylene composition, and said composition contains high density polyethylene (HDPE), ultra-fine full sulphur
Change powder styrene butadiene rubber, antistatic additive and compatilizer, the compatilizer contains the structure with polar monomer
The modified poly ethylene of unit.
According to the present invention, although the mentioned component of the composition is carried out to obtain this with the use of by
The polyethylene group of the high density polyethylene (HDPE) product that antistatic and good mechanical performance can be obtained needed for bright
Compound, in order to the composition is better achieved in each composition between mating reaction, and obtain
The more excellent polyethylene composition of antistatic property is obtained, under preferable case, relative to 100 weight portions
The high density polyethylene (HDPE), the content of the ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber is 2-25 weight portions,
The content of the antistatic additive is 5-30 weight portions, and the content of the compatilizer is 2-15 weight portions.More
Preferably, relative to the high density polyethylene (HDPE) of 100 weight portions, the ultra-fine form of finely divided powder, mehtod butylbenzene
The content of rubber is 5-15 weight portions, and the content of the antistatic additive is 10-25 weight portions, described compatible
The content of agent is 3-10 weight portions.It is further preferred that relative to the described highly dense of 100 weight portions
Degree polyethylene, the content of the ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber is 10-15 weight portions, described anti-quiet
The content of electric agent is 20-25 weight portions, and the content of the compatilizer is 5-10 weight portions.
According to the present invention, the high density polyethylene (HDPE) be a kind of degree of crystallinity produced as raw material with ethene it is high,
Nonpolar thermoplastic resin, with good resistance to low temperature, chemically stable and corrosion resistance.It is described
High density polyethylene (HDPE) can be the conventional high density polyethylene (HDPE) in this area, and generally its density can be
0.946-0.976g/cm3, melt temperature can be 130-145 DEG C.The high density polyethylene (HDPE) can be with commercially available
Obtain, for example can be purchased from Maoming Petrochemical, Exxon Mobil Corporation etc..
According to the present invention, the ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber can adopt the various of this area routine
Ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber, for example with grain diameter be 20-500nm (preferably
Ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber 30-500nm).The ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber is for example
Can be purchased from the trade mark Narpow VP-108 of Sinopec Beijing Chemical Research Institute.
According to the present invention, the antistatic additive can be adopted for strengthening the various of polyethylene antistatic property
Antistatic additive, as long as being not result in that the color of gained polyethylene is too deep (if color is too deep so cannot
Obtain the packing articles of shades of colour) and mechanical performance seriously reduction.Such as described antistatic additive can
Think that macromolecule amide-type antistatic additive, macromolecule ethers antistatic additive and macromolecule acid amides/ethers resist quiet
One or more in electric agent, ionomer antistatic additive, preferably macromolecule acid amides/ethers are antistatic
Agent.
Wherein, the instantiation of the macromolecule acid amides/ethers antistatic additive for example can be：It is purchased from
It is the PEBAX MH2030 trade mark acid amides/ethers antistatic additive of Arkama companies, public purchased from IonPhasE
One or more in the IPE rSTAT trades mark and IPE fSTAT trade mark ionomer antistatic additive of department.
According to the present invention, the compatilizer can enable each composition in composition preferably with height
Density polyethylene preferably holds and the high density polyethylene (HDPE) product more excellent so as to obtain performance.Wherein,
The modified poly ethylene of the construction unit with polar monomer refers to ethene with being total to that polar monomer is formed
Polymers, it is believed that be by a kind of polar monomer modified modified poly ethylene.It is described with polar monomer
Construction unit modified poly ethylene can be ethene and polar monomer alternate copolymer, random copolymerization
One or more in thing, block copolymer and graft copolymer, preferably with polar monomer as grafting knot
The graft copolymer of structure monomer, the polar monomer based on polyethylene and polyethylene (is hereinafter referred to as grafted
Polyethylene), particularly preferably with low density polyethylene (LDPE), (density can be as 0.91-0.94g/cm3) it is main body
Polar monomer and the low density polyethylene (LDPE) graft copolymer.
Wherein it is preferred to, the polar monomer is maleic anhydride, methacrylate-based monomer and propylene
One or more in esters of gallic acid monomer.The instantiation of the methacrylate-based monomer can include
But it is not limited to：GMA, methyl methacrylate, EMA and first
Base butyl acrylate.The instantiation of the acrylic ester monomer can be including but not limited to：Acrylic acid
Methyl esters, ethyl acrylate and butyl acrylate.
Preferably, the grafted polyethylene is selected from maleic anhydride grafted polyethylene, methyl acrylic ester list
One or more in body grafted polyethylene and acrylic ester monomer grafted polyethylene.Wherein, the first
The instantiation of base acrylic ester monomer grafted polyethylene can be including but not limited to：Methacrylic acid contracts
Water glyceride grafted polyethylene, methyl methacrylate-grafted polyethylene, EMA grafting are poly-
Ethene and butyl methacrylate grafted polyethylene.The acrylic ester monomer grafted polyethylene it is concrete
Example can be including but not limited to：Methyl acrylate grafted polyethylene, ethyl acrylate grafted polyethylene and
Butyl acrylate grafted polyethylene.
It is highly preferred that on the basis of the gross weight of the grafted polyethylene, the structure list of the polar monomer
The content of unit for example can be 0.5-5 weight %, preferably 1-4 weight %.
According to the present invention, the modified poly ethylene of the construction unit with polar monomer can pass through commercially available
Obtain, it is also possible to prepare according to the conventional various methods in this area, it is for instance possible to use solution is poly-
The method of conjunction prepares the modified poly ethylene of the construction unit with polar monomer.
By taking the preparation of grafted polyethylene as an example, the grafted polyethylene can be prepared by the following method
Arrive：By polyethylene (particularly low density polyethylene (LDPE)) with polar monomer and initiator in response type twin-screw
Extruded in extruder.Wherein, by the polyethylene and polar monomer and initiator in the double spiral shells of response type
The method extruded in bar extruder is known to the skilled person.For example, these three raw materials can be mixed
After closing uniformly, it is re-fed into being extruded in response type double screw extruder；Can also first by initiator and pole
After property monomer is well mixed, the two mixture and polyethylene are being extruded.Wherein, when initiator and
The mixture of polar monomer be liquid when, can by liquid addition device in extrusion continuously press than
Example is added in extruder；When the mixture of initiator and polar monomer is solid, then will can cause
After the mixture of agent and polar monomer is mixed with polyethylene, remelted extrusion.
Specifically, the temperature of extrusion is 160-200 DEG C, and the speed of extrusion is 200-400g/min.
Additionally, as a rule, at normal temperatures and pressures, the polyethylene is solid, and the polar monomer
May be solid, be likely to as liquid with initiator.When the polar monomer and initiator are liquid,
Polyethylene is easy to skidding occur with the mixed process of polar monomer and initiator, therefore, in order that
Obtaining these three raw materials can realize the mixing of molecular level and be more beneficial for the carrying out being polymerized, described to be well mixed
And after the method for melt polymerization includes first to melt in polyethylene feeding response type double screw extruder, will draw
The mixture for sending out agent and polar monomer is continuously added in proportion by liquid addition device in extrusion
To in extruder.Wherein, on the basis of the polyethylene of 100 weight portions, the polar monomer and initiator
The feed rate of mixture for example can be 2-5 weight portions/min.
According to the present invention, during the grafted polyethylene is prepared, the polyethylene, polar monomer
Can be selected and be changed in wider scope with the consumption of initiator, it is possible to be obtained according to expection
Grafted polyethylene be adjusted.For example, on the basis of the polyethylene of 100 weight portions, the polarity list
The consumption of body can be 0.1-5.5 weight portions, and the consumption of the initiator can be 0.05-0.3 weight portions.
Preferably, on the basis of the polyethylene of 100 weight portions, the consumption of the polar monomer is 1.5-4 weight
Part, the consumption of the initiator is 0.05-0.2 weight portions.
According to the present invention, the polyethylene various can carry out the poly- of graft reaction with well known in the art
Ethene, does not especially limit, and for example, the trade mark that can be Yanshan Petrochemical production is LD100AC
Low density polyethylene (LDPE).The polar monomer as described above, is repeated no more here.
According to the present invention, the various radical initiators that the initiator can be known in the art.It is described
Radical initiator can cause selected from azo-initiator, peroxide type initiators and redox class
One or more in agent.
Wherein, the instantiation of the azo-initiator can be including but not limited to：The isobutyric acid of azo two
Dimethyl ester, azo-bis-isobutyrate hydrochloride, azodicarbonamide, azo dicyclohexyl formonitrile HCN hydrochloride,
Azo isobutyl cyano group formamide, azo diisopropyl imidazoline hydrochloride, azo dicyano valeric acid, azo diisopropyl
One or more in imidazoline, azodiisobutyronitrile, AMBN and ABVN.
The instantiation of the peroxide type initiators can be including but not limited to：Hydrogen peroxide, over cure
Sour ammonium, sodium peroxydisulfate, potassium peroxydisulfate, isopropyl benzene hydroperoxide, cumyl peroxide, peroxidating two
One or more in benzoyl, di-cyclohexylperoxy di-carbonate and the benzoyl peroxide tert-butyl ester.
The instantiation of the redox type initiators can be including but not limited to：Sulfate-sulfurous acid
One or more in salt, persulfate-thiocarbamide, persulfate-organic salt and ammonium persulfate-fatty amine.
Wherein, the sulfate-sulphite can selected from sodium sulphate-sodium sulfite, potassium sulfate-potassium sulfite and
One or more in ammonium sulfate-ammonium sulfite；Persulfate-thiocarbamide can selected from sodium peroxydisulfate-thiocarbamide,
One or more in potassium peroxydisulfate-thiocarbamide and ammonium persulfate-thiocarbamide；Persulfate-organic salt can be selected from
One or more in sodium peroxydisulfate-potassium acetate, potassium peroxydisulfate-potassium acetate and ammonium persulfate-ammonium acetate；Cross
Ammonium sulfate-fatty amine can be ammonium persulfate-N, N- tetramethylethylenediamines and/or ammonium persulfate-diethylamine.
, according to the invention it is preferred in the case of, the compatilizer contains polar monomer and is total to the grafting of polyethylene
Other copolymers of polymers and optional polar monomer and ethene, other copolymers are for example above retouched
The ethene stated and alternate copolymer, random copolymer, the block copolymer of polar monomer.Wherein, preferably
In the case of, on the basis of the total amount of the compatilizer, the graft copolymer of the polar monomer and polyethylene
Content be 10-100 weight %, the content of other copolymers of polar monomer and ethene is 0-90 weights
Amount %.
More preferably described compatilizer be polar monomer and polyethylene graft copolymer and polar monomer with
The combination of other copolymers of ethene.Wherein, the polar monomer and the graft copolymer of polyethylene contain
It is 1-3 to measure with the weight ratio of the polar monomer and other copolymers of ethene：1.
According to the present invention, the composition can also be each containing the conventional enhancing high density polyethylene (HDPE) in this area
The various auxiliary agents of performance are planted, as long as not interfering with its antistatic property and crack-resistant performance and will not lead
Cause color too deep.
Present invention also offers a kind of preparation method of high density polyethylene (HDPE) product, the method includes：Will be upper
Stating composition carries out extrusion molding.
According to the present invention, to the process of the extrusion molding, there is no particular limitation, can be normal using this area
The preparation process of the extrusion molding of the high density polyethylene (HDPE) product of rule, for example by above-mentioned composition each into
Divide and be first well mixed (can be added in high-speed mixer and be mixed wherein), be then added to twin-screw
Extruded in extruder, wherein, the temperature of the extrusion molding can be 160-250 DEG C, preferably
180-220℃。
Present invention also offers by obtained in said method high density polyethylene (HDPE) product.
According to the present invention, by the polyethylene composition using the present invention, can at lower cost obtain anti-
The high density polyethylene (HDPE) product of antistatic property and crack-resistant function admirable, such as specific insulation is
1014Below Ω cm, preferably.And its color is white group, its Color tunable can be each by adding
Plant dyestuff to obtain the product of shades of colour.
Hereinafter will be described the present invention by embodiment.
In following examples and comparative example, specific insulation is by standard GB/T/T 1410-2006
Described in method measure.
Tensile strength is measured by the method described in standard BS EN ISO 527-2-2012.
Preparation example 1
By cumyl peroxide (fine preparation factory is sincerely believed in DCP, initiator, Beijing, as follows) with
(GMA, polar monomer, technical grade, Luoyang perseverance photoinitiator chemical share has GMA
Limit company) with 1:12 weight ratio carries out mixed dissolution, obtains the mixed liquor of polar monomer and initiator.
Using the response type double screw extruder of German WP companies, under conditions of temperature is for 180 DEG C, will be low
Density polyethylene (purchased from the LD100AC trades mark of Yanshan Petrochemical, as follows) is melted and extruded, while
The mixed liquor of above-mentioned polar monomer and initiator is carried out into reality by liquid charging device in extrusion
When metered charge (relative to the low density polyethylene (LDPE) of 100 weight portions, the polar monomer and initiator
The feed rate of mixture is 2 weight portions/minute)；Wherein, the temperature of extrusion is 180 DEG C, and screw rod turns
Fast 200rpm, rate of extrusion is 250g/min.So as to obtain modified poly ethylene A1, with modified poly ethylene
On the basis of the gross weight of A1, the structural unit content of polar monomer is 1.8 weight %.
Preparation example 2
By 100 weight portion low density polyethylene (LDPE)s, 4 parts by weight maleic anhydride (MAH, polar monomer, north
Jing Yili fine chemicals Co., Ltd), 0.1 weight portion cumyl peroxide be well mixed, mixed
Compound.Then the mixture is sent into the response type double screw extruder of WP companies of Germany, and
Melting extrusion at a temperature of 180 DEG C；Wherein, the temperature of extrusion is 180 DEG C, screw speed 300rpm,
Rate of extrusion is 300g/min.So as to obtain modified poly ethylene A2, with the gross weight of modified poly ethylene A2
On the basis of, the structural unit content of polar monomer is 3.8 weight %.
Preparation example 3
By 100 weight portion low density polyethylene (LDPE)s, 4 parts by weight of acrylic acid methyl esters, 0.1 weight portion peroxidating two
Isopropylbenzene is well mixed, and obtains mixture.Then the mixture is sent into the response type of WP companies of Germany
In double screw extruder, and the melting extrusion at a temperature of 200 DEG C；Wherein, the temperature of extrusion is 200 DEG C,
Screw speed 300rpm, rate of extrusion is 300g/min.So as to obtain modified poly ethylene A3, with modified
On the basis of the gross weight of polyethylene A3, the structural unit content of polar monomer is 3.8 weight %.
Embodiment 1-5
The present embodiment is used to illustrate the polyethylene composition and high density polyethylene (HDPE) product and its system of the present invention
Preparation Method.
Formula according to table 1, by high density polyethylene (HDPE) (purchased from Maoming Petrochemical 50100 trades mark,
It is as follows), ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber (be purchased from the Sinopec Beijing Chemical Research Institute trade mark
Narpow VP-108, grain diameter is 30-500nm, as follows), (concrete composition is shown in Table 1 to compatilizer
It is shown) and antistatic additive (purchased from Arkama companies the PEBAX MH2030 trades mark acid amides/ether it is common
Polymers, wherein, polyamide be firm section, polyethers be soft section, it is as follows) be added to high-speed mixer (
Machinery Manufacturing Co., Ltd. of harbor city Weida of family SHR-100A models) in stir after, be added to Germany
In the response type double screw extruder of WP companies, and melting extrusion is carried out under the extrusion temperature shown in table 1
And granulate, high density polyethylene (HDPE) particle is obtained, its color, specific insulation and tensile strength are shown in Table 1 institute
Show.
Comparative example 1
Method according to embodiment 1, except for the difference that, is added without ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber
And compatilizer, concrete composition is shown in Table 1, so as to obtain high density polyethylene (HDPE) particle, its color, body
Product resistivity and tensile strength are shown in Table 1.
Comparative example 2
Method according to embodiment 1, except for the difference that, does not adopt compatilizer, concrete composition to be shown in Table 1
Shown, so as to obtain high density polyethylene (HDPE) particle, its color, specific insulation and tensile strength are shown in Table 1
It is shown.
Comparative example 3
Method according to embodiment 1, except for the difference that, does not adopt ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber
And modified poly ethylene, concrete composition is shown in Table 1, so as to obtain high density polyethylene (HDPE) particle, its color,
Specific insulation and tensile strength are shown in Table 1.
Table 1
Note：* other copolymers are referred to and are total to purchased from the ethene of DOW companies Primacor 3440 and the random of methyl acrylate
Polymers.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, can be to the technical side of the present invention
Case carries out various simple variants, and these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention is no longer separately illustrated to various possible combinations.
Additionally, can also be combined between a variety of embodiments of the present invention, as long as its
Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of polyethylene composition, it is characterised in that said composition contains high density polyethylene (HDPE), super
Thin form of finely divided powder, mehtod butadiene-styrene rubber, antistatic additive and compatilizer, the compatilizer contains with polar monomer
Construction unit modified poly ethylene.
2. composition according to claim 1, wherein, relative to the height of 100 weight portions
Density polyethylene, the content of the ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber is 2-25 weight portions, described anti-
The content of electrostatic agent is 5-30 weight portions, and the content of the compatilizer is 2-15 weight portions.
3. composition according to claim 2, wherein, relative to the height of 100 weight portions
Density polyethylene, the content of the ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber is 5-15 weight portions, described anti-
The content of electrostatic agent is 10-25 weight portions, and the content of the compatilizer is 3-10 weight portions.
4. the composition according to any one in claim 1-3, wherein, it is described with polarity
The modified poly ethylene of the construction unit of monomer is the copolymer of polar monomer and ethene, and the polar monomer is
One or more in maleic anhydride, methacrylate-based monomer and acrylic ester monomer.
5. composition according to claim 4, wherein, the compatilizer contain polar monomer with
Other copolymers of the graft copolymer of polyethylene and optional polar monomer and ethene, with the compatilizer
Total amount on the basis of, the content of the graft copolymer of the polar monomer and polyethylene is 10-100 weights
Amount %, polar monomer is 0-90 weight % with the content of other copolymers of ethene.
6. the composition according to any one in claim 1-5, wherein, the ultra-fine full sulphur
The grain diameter for changing powder styrene butadiene rubber is 20-500nm.
7. the composition according to any one in claim 1-6, wherein, the antistatic additive
It is antistatic for macromolecule amide-type antistatic additive, macromolecule ethers antistatic additive and macromolecule acid amides/ethers
One or more in agent.
8. a kind of preparation method of high density polyethylene (HDPE) product, the method includes：By claim 1-7
Composition described in middle any one carries out extrusion molding.
9. method according to claim 8, wherein, the temperature of the extrusion molding is 160-250 DEG C,
Preferably 180-220 DEG C.
10. high density polyethylene (HDPE) product obtained in a kind of method by described in claim 8 or 9.
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